Add tests for the GtkLabel builder parser

These tests check various error conditions in GtkLabel
custom tags.

testsuite/gtk/Makefile.am

@@ -173,6 +173,11 @@ test_ui =						\
 	ui/test5.ui ui/test5.expected			\
 	ui/test6.ui ui/test6.expected			\
 	ui/test7.ui ui/test7.expected			\
+	ui/label1.ui ui/label1.expected			\
+	ui/label2.ui ui/label2.expected			\
+	ui/label3.ui ui/label3.expected			\
+	ui/label4.ui ui/label4.expected			\
+	ui/label5.ui ui/label5.expected			\
 	$(NULL)
 
 EXTRA_DIST +=				\

testsuite/gtk/ui/label1.expected

@@ -0,0 +1 @@
+SUCCESS

testsuite/gtk/ui/label1.ui

@@ -0,0 +1,25 @@
+<!-- test all valid label attributes -->
+<interface>
+  <object class="GtkLabel">
+    <attributes>
+      <attribute name="language" value="de" start="5" end="10"/>
+      <attribute name="style" value="italic"/>
+      <attribute name="weight" value="bold"/>
+      <attribute name="variant" value="normal"/>
+      <attribute name="stretch" value="ultra-expanded"/>
+      <attribute name="underline" value="double"/>
+      <attribute name="strikethrough" value="True"/>
+      <attribute name="gravity" value="north"/>
+      <attribute name="gravity-hint" value="line"/>
+      <attribute name="family" value="sans"/>
+      <attribute name="size" value="10"/>
+      <attribute name="absolute-size" value="10"/>
+      <attribute name="font-desc" value="Cantarell 11"/>
+      <attribute name="foreground" value="yellow"/>
+      <attribute name="background" value="red"/>
+      <attribute name="underline-color" value="green"/>
+      <attribute name="strikethrough-color" value="purple"/>
+      <attribute name="scale" value="1.5"/>
+    </attributes>
+  </object>
+</interface>

testsuite/gtk/ui/label2.expected

@@ -0,0 +1,2 @@
+ERROR: g-markup-error-quark 6
+.:5:32 element 'attribute' requires attribute 'value'

testsuite/gtk/ui/label2.ui

@@ -0,0 +1,8 @@
+<!-- test missing label attribute value -->
+<interface>
+  <object class="GtkLabel">
+    <attributes>
+      <attribute name="style"/>
+    </attributes>
+  </object>
+</interface>

testsuite/gtk/ui/label3.expected

@@ -0,0 +1,2 @@
+ERROR: gtk-builder-error-quark 6
+Could not parse enum: `warbl'

testsuite/gtk/ui/label3.ui

@@ -0,0 +1,8 @@
+<!-- test invalid label attribute name -->
+<interface>
+  <object class="GtkLabel">
+    <attributes>
+      <attribute name="warbl" value="true"/>
+    </attributes>
+  </object>
+</interface>

testsuite/gtk/ui/label4.expected

@@ -0,0 +1,2 @@
+ERROR: gtk-builder-error-quark 1
+.:5:15 Unsupported tag for GtkContainer: <blarg>

testsuite/gtk/ui/label4.ui

@@ -0,0 +1,8 @@
+<!-- test invalid tag in GtkLabel attributes -->
+<interface>
+  <object class="GtkLabel">
+    <attributes>
+      <blarg/>
+    </attributes>
+  </object>
+</interface>

testsuite/gtk/ui/label5.expected

@@ -0,0 +1,2 @@
+ERROR: gtk-builder-error-quark 1
+Unhandled tag: <warbl>

testsuite/gtk/ui/label5.ui

@@ -0,0 +1,8 @@
+<!-- test invalid tag in GtkLabel -->
+<interface>
+  <object class="GtkLabel">
+    <attributes>
+    </attributes>
+    <warbl/>
+  </object>
+</interface>